Home / 2,819.10-4,222.58-2,511.30

Finding the Fourth Proportional to 2,819.10, 4,222.58 and 2,511.30

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Solution

The fourth proportional to 2,819.10, 4,222.58 and 2,511.30 is: 3,761.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.10 : 4,222.58 = 2,511.30 : x
  2. Step 2: Convert to fraction form
    2,819.10/4,222.58 = 2,511.30/x
  3. Step 3: Cross multiply
    2,819.10x = 4,222.58 × 2,511.30
  4. Step 4: Simplify right side
    2,819.10x = 10,604,152.60
  5. Step 5: Solve for x
    x = 10,604,152.60/2,819.10
  6. Step 6: Final answer
    x = 3,761.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.